Thread: Changing the detail map on a Quest2 unit

As you can't browse the internal memory, there may be a menu setting which will tell you which version basemap you have. You can probably replace it using the same dos cmd substituting GMAPPROM.IMG with GMAPBMAP.IMG to load a modern basemap but i would only do that if your unit doesn't have a basemap for your region. If when you zoom out it tells you on the screen that it's changed from the detail map to the base map (after about 5 km usually) and there is still map info showing at high zoom then i personally would leave it alone. Some older units with limited memory came with regional basemaps e.g. North America only. If there's a world basemap or a regional one covering Africa in it, i'd definately leave it as-is. Even a 10 year old basemap is better than none and if you have no way of backing up what's there before you overwrite it you may be in for a world of trouble if you replace a working but albeit old one with a modern one that the unit chokes on. However, i've not owned a Quest/Quest2 and i don't know a lot about them. Having said all that, the basemap on my 2610 is at least 7 years old and works fine.